Pavel Sakharov 0336995512 dma-buf: Fix NULL pointer dereference in sanitycheck() ...

[ Upstream commit 2295bd8467 ]

If due to a memory allocation failure mock_chain() returns NULL, it is
passed to dma_fence_enable_sw_signaling() resulting in NULL pointer
dereference there.

Call dma_fence_enable_sw_signaling() only if mock_chain() succeeds.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: d62c43a953 ("dma-buf: Enable signaling on fence for selftests")
Signed-off-by: Pavel Sakharov <p.sakharov@ispras.ru>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240319231527.1821372-1-p.sakharov@ispras.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-04-10 16:28:21 +02:00

..

heaps

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dma-buf-sysfs-stats.c

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dma-buf-sysfs-stats.h

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dma-buf.c

dma-buf: Add unlocked variant of attachment-mapping functions

2023-09-23 11:11:08 +02:00

dma-fence-array.c

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dma-fence-chain.c

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dma-fence-unwrap.c

dma-buf: add dma_fence_timestamp helper

2023-10-19 23:08:57 +02:00

dma-fence.c

dma-buf: fix an error pointer vs NULL bug

2023-08-03 10:24:19 +02:00

dma-heap.c

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dma-resv.c

dma-buf: fix check in dma_resv_add_fence

2023-12-08 08:51:15 +01:00

Kconfig

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Makefile

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selftest.c

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selftest.h

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selftests.h

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st-dma-fence-chain.c

dma-buf: Fix NULL pointer dereference in sanitycheck()

2024-04-10 16:28:21 +02:00

st-dma-fence-unwrap.c

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st-dma-fence.c

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st-dma-resv.c

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sw_sync.c

dma-buf/sw_sync: Avoid recursive lock during fence signal

2023-08-30 16:11:12 +02:00

sync_debug.c

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sync_debug.h

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sync_file.c

dma-buf: add dma_fence_timestamp helper

2023-10-19 23:08:57 +02:00

sync_trace.h

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udmabuf.c

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